Great post. I just installed my vented lowers last week and it is very easy. Usually I purchase from Zanotti's but tried Lakeshore this time. The lowers were around $500 and arrived in two weeks. Also the glove box liners - around $25 were a gread add-on.
Very nice, you will enjoy those. Some will tell you the vents vibrate closed. I think they will find that the toe of their boot is closing the vents. I keep mine on all year.